User’s Manual 6-5
Power and Power-Up Modes
High capacity battery pack (Provided with some models, or option)
A high capacity battery pack is installable instead of a main battery pack.
The connection method of high capacity battery pack is the same as that of
main battery pack.
Real Time Clock (RTC) battery
The Real Time Clock (RTC) battery provides power for the internal real
time clock and calendar function and also maintains the system
configuration while the computer is switched off. If the RTC battery
becomes completely discharged, the system will lose this information and
the real time clock and calendar will stop working - in this instance the
following message will be displayed when you turn on the power:
S **** RTC battery is low or CMOS checksum is
inconsistent ****
Press [F1] key to set Date/Time.
You can change the Real Time Clock settings by switching the computer
on while pressing the Esc key followed by the F1 key when prompted.
Please refer to Chapter 8 Troubleshooting for further information.
■ The battery pack is a lithium ion battery, which can explode if not
properly replaced, used, handled or disposed of. Dispose of the battery
as required by local ordinances or regulations. Use only batteries
recommended by TOSHIBA as replacements.
■ Do not remove the battery pack while the computer is in Standby
Mode. Data is stored in RAM, so if the computer loses power it will be
lost. When the computer is powered off in Standby Mode, and the AC
Adaptor is not connected, the battery pack supplies power to maintain
data and programs in memory. If the battery pack is completely
discharged, Standby Mode will not function and the computer loses all
data in memory.
■ When the high capacity battery pack is connected to the computer, do
not hold on only to the high capacity battery pack when lifting the
computer up.
The high capacity battery pack may separate from the computer,
causing it to fall and cause injuries.
The computer’s RTC battery is a Ni-MH battery and should be replaced
only by your dealer or by a TOSHIBA service representative. The battery
can explode if not properly replaced, used, handled or disposed of.
Dispose of the battery as required by local ordinances or regulations.
The RTC battery does not charge while the computer is turned off even if
the AC adapter is attached.
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